Printing and searching python namespaces from rospy.get_param()

edit

I am catkin-izing, updating, and making revisions to the nxt ROS packages. I have hit an issue that seems basic but I could use some help to get through it. Searches for accessing Python dictionaries haven't helped much.

The code:

host = rospy.get_param("~host", None)
sock = nxt.locator.find_one_brick(host)
b = sock.connect()

config = rospy.get_param("~"+ns)
components = []
for c in config:
    rospy.loginfo("Creating %s with name %s on %s",c['type'],c['name'],c['port'])
    if c['type'] == 'motor':
        components.append(Motor(c, b))
    elif c['type'] == 'touch':
        components.append(TouchSensor(c, b))
    elif c['type'] == 'ultrasonic':
        components.append(UltraSonicSensor(c, b))
    elif c['type'] == 'color':
        components.append(ColorSensor(c, b))
    elif c['type'] == 'intensity':
        components.append(IntensitySensor(c, b))
    elif c['type'] == 'gyro':
        components.append(GyroSensor(c, b))
    elif c['type'] == 'accelerometer':
        components.append(AccelerometerSensor(c, b))
    else:
        rospy.logerr('Invalid sensor/actuator type %s'%c['type'])

My issue is with the c['text'] in the for loop. When I print config[c] it prints the value of the key. Printing 'c' alone prints the key. However, when c['text'] is called ROS fires back an error:

TypeError: string indices must be intergers, not str

The namespace (returned into the config variable) can have several sensors set up by a .yaml file.

Thank you for your time.